baber/WOPTO huggingface dataset:
Patent GB-1248362-A (GB)
Title: Optical profile projection systems
Inventor: DEMAINE DAVID
IPC: G02B13/22
Filed: 1970-01-28
Abstract: 1,248,362. Profile projection system. RANK ORGANISATION Ltd. Jan.28, 1970, No.4075/70. Addition to 1,173,962. Heading G2J. An optical measuring projector has an objective as defined in claim 1 of 1,173, 962, and includes provision for movement of the complete objective in toto relative to the body of the objective in predetermined relationship to the internal movements of the objective components so as to maintain constant the position of the image plane during variation of the object plane/image plane distance. The outer components A, A<SP>1</SP> of the lens are simultaneously and equally movable in opposite directions in association with converse simultaneous and equal movements in opposite directions of the inner components B, B<SP>1</SP> with respect to a diaphragm S. The laws of movement of the inner and outer components are both substantially linear with respect to the change in object plane/ image plane distance. The overall movement of the objective and the movements of the inner and outer components are governed by a single control element through a screw thread and simple linear levers. Optical data for the objective is also given.
Patent GB-197050-A (GB)
Title: Improvements in and relating to wall coverings
IPC: E04F13/08
Filed: 1922-02-11
Abstract: 197,050. Rowley, A. J. Feb. 11, 1922. Nails. - Wall covering sheets with bevelled edges are secured by nails or like fastenings which have radiating arms 4 of triangular section, each nail engaging at least three adjacent corners of the sheets.
Patent GB-214378-A (GB)
Title: Improvements relating to the supply of air to the burners of gas, oil or powdered fuel furnaces
IPC: F23C99/00
Filed: 1923-02-12
Abstract: 214,378. Lucas, E. E. Feb. 12, 1923. Gas, spray, and pulverulent fuel burners.- In a burner for gas, oil fuel, or pulverized fuel the nozzle 1 communicates with an outwardlyflared aperture 2 in an element 3 which is provided with air ducts 4<a> communicating with air passages 5, the air being introduced adjacent the point of dispersion from the nozzle under sufficient pressure and in such directions as to produce a positive scattering of the flame. Specification 164,833, [Class 51 (ii), Furnaces and kilns for applying &c.], is referred to. Reference has been directed by the Comptroller to Specification 207,062.
Patent GB-1382672-A (GB)
Title: Vapour discharge lamps
IPC: H01J9/385
Filed: 1972-01-28
Abstract: 1382672 Discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 9 Jan 1973 [28 Jan 1972] 4193/72 Heading HID A low pressure vapour discharge lamp has an exhaust tube 13 extending from the outside, through the tube wall and terminating in a closed end 18 to form a reservoir, the side wall having opening 17 and containing a supply of vaporizable substance which gives rise to substantially all the emitted light. The tube is filled through tube 13, then sealed at tip 22. The lamp may include an inert gas and Li, Na, K, Cd or a mixture thereof for example, as a vaporizable substance. Outside jacket 14 contains an evacuated space. Reference is made to prior art lamps with dispersed dimples over the wall to ensure even metal vapour distribution.
Patent GB-678784-A (GB)
Title: Improvements in or relating to hydraulic mechanism for tractor-operated agriculturalimplements
Inventor: ZISKAL JOSEPH FRANK
IPC: A01B63/22
Filed: 1951-02-21
Abstract: 678,784. Agricultural implements. INTERNATIONAL HARVESTER CO. Feb. 21, 1951, No. 4215/51. Class 6(i) [Also in Group XXIX] A hydraulic mechanism for tractor-operated agricultural implements comprises a hydraulic ram 11 mounted on a trailing implement 12, one end of the ram cylinder being pivotally connected with the implement frame 14 by a pin 15 whereas the piston rod 16 of the ram is pivotally connected by a pin 17 with a depth gauge assembly 18 for raising the implement tool 19 to the transport position when the ram 11 is expanded. Hydraulic fluid under control of a manually-operated remote control valve at 33 is fed to, and exhausted from, the ram through conduits 21, 22, lowering of the implement tool being consequent upon retraction of the ram. The ram is provided with a valve at the piston rod end of its cylinder which controls exhaust of fluid from the opposite end of the cylinder (see Group XXIX), closing movement of the valve being initiated by means of an element provided on the piston rod.
Patent GB-140182-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H21/58
Filed: 1919-02-20
Abstract: 140,182. Crabtree, J. A. Feb. 20, 1919. Snap-action switches; contacts. -In an intermediate switch, the contacts are so arranged as to facilitate the introduction of quickaction mechanism, which may be of the dead-centre type described in Specifications 140,179 and 140,180. The movable contact member carries two circuit-closing members 52, 53 illustrated diagrammatically in Figs. 1 and 2, each coupling together two fixed contacts 49, 51 and 48, 50 occurring on the same side of the movable contact member, and a third circuit-closing member 54 connecting together two contact surfaces 48, 49 on opposite sides of the movable contact member. In addition, in the position shown in Fig. 2, the circuit-closing members engage a fixed non- circuit terminal 55 or two terminals connected together so as to connect the contacts 50, 51. A tumbler switch constructed in accordance with the invention is shown in Fig. 5. The space between the lateral circuit-closing members is free from cross-connexions and facilitates the mounting of the quiclc-action mechanism and of an insulating and separating partition.
Patent GB-787828-A (GB)
Title: Compensating spring arrangement for vehicles with two or more axles
IPC: B60G21/04
Filed: 1956-02-10
Abstract: 787,828. Spring suspensions; equalizing load on wheels; preventing lateral canting. GRAMATZKI, P. Feb. 10, 1956 [Feb. 16, 1955], No. 4301/56. Class 108(2) A-compensating spring arrangement for vehicles having two or more axles comprises a torsion element associated with each pair of wheels and provided with similarly directed levers, the lever on one side of the vehicle being connected to a bearing which is carried by the axle and surrounds the torsion element or is adjacent thereto and the free end of the lever being linked to the vehicle frame by means of another bearing, and the lever on the other side of the vehicle being connected to a bearing which is carried by the vehicle frame and which surrounds the torsion element or is adjacent thereto and the free end of the lever is linked to the axle, the arrangement being such that the vehicle axle can swing without elastic deformation about a centre line through the two bearings carried by the frame and can also execute approximately parallel displacement with respect to the frame with elastic deformation and the torsion elements are so arranged and interconnected that the angular movement of one axle or group of axles without elastic deformation sets up opposite angular movement of another axle or group of axles. As shown in Figs. 1 and 2, torsional elements 6 and 7 associated with axles 5 are each rotatably mounted on a bearing 11 or 12 respectively attached to the axles and include lever arms the free end of one of which is pivotally connected to the vehicle frame 11 and the free end of the other of which is pivotally mounted adjacent the opposite end of the axle. The torsion element at opposite ends of the vehicle are interconnected by a compensating rod 8 pivotally attached to a member 16 rigid with each element. According to Fig. 3, the torsion element consists of a leaf spring 13, the ends of which are provided with bearings 12 and 10<SP>1</SP> which are connected respectively to the vehicle frame and axle 5 by pairs of swinging arms 14, 15, bearings 10a, 12a being provided for this purpose at the free ends of the arms. In another arrangement, Fig. 4 (not shown), the ends of the spring 13 are located adjacent the bearings 10<SP>1</SP> and 12. In a further arrangement, Fig. 5 (not shown), the spring 13 is arranged parallel to the axle and the bearings adjacent the ends of the springs are at different distances from the centre thereof. In a modification, Fig. 6 (not shown), the swinging arms 14, 15 extend in opposite directions from the respective ends of the spring 13 which lies at an angle to the axle 5. According to Fig. 7 (not shown) the lever arms are of different lengths, that at one end of the spring extending in opposite directions from that end. The invention is applicable to swinging axle arrangements.
Patent GB-1367249-A (GB)
Title: Spraying apparatus for marking a surface
IPC: A63C19/08
Filed: 1972-01-31
Abstract: 1367249 Line marking apparatus T J SMRT 31 Jan 1972 [24 Feb 1971] 4458/72 Heading E1G A line marking machine for roads or playing fields comprises a wheeled frame 15 for transporting one or more inverted aerosol paint containers 22, 23 where spray nozzles are controlled by laterally-movable valves 43, the wheeled frame being provided with a propelling handle 17 and valve-actuating mechanism, Fig. 6, comprising a crank 54 having cam engagement with a spring-loaded slidable plate 45 for actuating the valve(s) 43. As shown the plate 45 carries a cross bar 47 for simultaneous actuation of the valves of two convergent-spray containers 22, 23 and the bell crank 54 is connected by a cable 60 to a lockable trigger 62. Alternatively the crank 54 may be operated by a solenoid. The containers are seated on an apertured base plate 36 and are located between front and rear walls 32, 33 by a central spring clip (41) and side walls, Fig. 9 (not shown) which are laterally adjustable to vary the width of line sprayed. The sprays may be confined by a removable absorbent mask, Fig. 11 (not shown). The frame may be modified to carry herbicide or road-sealant spray cans ahead of the paint containers.
Patent GB-1479652-A (GB)
Title: Polymerisation catalyst
IPC: C08F4/00
Filed: 1974-01-31
Abstract: 1479652 Ziegler polymerization catalyst IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Jan 1975 [31 Jan 1974] 04574/74 Heading C3P Olefins are polymerized in the presence of a catalyst comprising (1) at least one solid compound of a transition metal of Groups IVA to VIA which has been modified by grinding with a Lewis Base, (2) at least one organometallic compound of Group IA or IIA or of aluminium, (3) a polyene, and optionally (4) a Lewis Base. The polymers are 3-methyl-heptatriene-1,4,6- or cyclooctatriene, cyclooctatetraene, cycloheptatriene or substituted derivatives thereof, e.g. tropylium salts, tropolones or tropones. The Lewis Bases ground in (1) or present as (4) may be amines, amides, ureas, thioureas, organophosphorus compounds, ethers, esters, ketones, alcohols, or thio-analogues thereof, or, for component (4) silanes or siloxanes. The specific phosphorus compounds used in Specifications 1,383,207, 1,423,658, 1,423,659 1,423,660, 1,429,242 and 1,427,842 are particularly referred to as suitable Lewis bases. Examples refer to the polymerization of proppylene in bulk, in heptane or in the gas phase using a bed of polypropylene in the presence of hydrogen and of (1) TiCl 3  or TiCl 3 .¢AlCl 3  ground with hexamethylphosphoramide (HMPT) or pentamethyl - # - dimethylaminoethyl - phosphoric triamide (PDEPT), (2) AlEt 3  or Et 2 AlCl, (3) cycloheptatriene, and in some cases (4) HMPT, PDEPT, octamethylpyrophosphoramide, tetramethylethylene diamine (TMED) or 2-dimethylamino-1,3-dimethyl - 1,3 - diazo - 2- phospholidine - 2- oxide or a mixture of HMPT and TMED. In a comparative procedure components (1) to (4) are all present but the TiCl 3  of component (a) is not ground with the Lewis Base.
Patent GB-741804-A (GB)
Title: Improvements relating to hydraulic power lift systems for tractors
IPC: A01B63/10
Filed: 1951-02-26
Abstract: 741,804. Hydraulic machines. FERGUSON, Inc., H. Feb. 26, 1951 [March 15, 1950], No. 4576/51. Class 69 (2). In a tractor hydraulic system comprising a main actuator 18, a pump 20 for supplying pressure fluid to said actuator, a hand lever 30 for controlling the delivery of pressure fluid from the pump, and a control device connected by a conduit 55 to the pump and by a conduit 62 to an auxiliary actuator 40, the device is responsive to a predetermined pressure developed in the auxiliary actuator so as to actuate the hand lever to interrupt the delivery of pressure fluid from the pump to the auxiliary actuator. The operation of the hand lever 30, main actuating mechanism 18, 14, load responsive means 31 and valve plunger 23 are generally as disclosed in Specification 470,069, [Group XXXI], when the lever 30 is moved to the substantially upright position, the plunger 23 is depressed to uncover a passage 25 leading from the reservoir or sump 22 to the pump 20 and pressure fluid is supplied through conduit 55 to the chamber 51 of a valve member, where it flows past a spring-loaded valve 57 into a chamber 52, and thence past a spring-loaded checkvalve 60 into conduit 62 and the cylinder 41 of the auxiliary actuator 40. Pressure fluid in chamber 52 also flows into a conduit 72 to act upon the plunger 70 of the control device. The plunger 70 has a head 73 engaging an end portion 67 of the lever 30, and is held in its retracted position against the action of the pressure fluid by two links 80, 81 of a toggle mechanism which are held in an open, i.e. approximately straight line, position by a spring 90, the angle between the links being governed by an adjustable stop member 92. When the pressure on the plunger 70 increases sufficiently to initiate closing movement of the links they will " snap over " to a folded position in which the head 73 of the plunger 70 moves the lever 30 to raise the plunger 23 to block the supply line 25 and the exhaust conduit 27 with the result that the auxiliary actuator 40 is hydraulically locked. Subsequent movement of the lever 30 to raise the plunger 23 to uncover the conduit 27 will also, via a mechanical connection between the lever 30 and the valve stem 56, open the valve 57, an extension 68 thereon depressing the valve 60 so that pressure fluid in the cylinder 41 has passage to the sump 22.
Patent GB-179326-A (GB)
Title: Improvements in aeroplanes
IPC: B64C23/00
Filed: 1921-02-09
Abstract: 179,326. Carlson, I., Lynch, J. H., and Cahill, G. Feb. 9, 1921. Aeroplanes; machines supported by direct fluid pressure apparatus; propelling; planes, arrangement and construction of.-Propellers at the front and rear of an arched plane are so driven that they force air from opposite directions against the underside of the plane and so cause the aeroplane to rise vertically or remain stationary in the air. The plane 6 consists of fabric 19 mounted on circular ribs 20. The propeller 34 on a shaft 9 is driven from an engine 8 through gearing 32, 33. The propeller 36 is mounted on a shaft 10, which is oppositely driven from the shaft 9 through friction rollers 39, 42 and a friction disc 11. The roller 42 is splined to the shaft 10, and can be caused to traverse the disc 11 by a lever 45 and pedal 48, so that the direction of rotation of the shaft 10 is reversed; and the rollers 39, 42 may have dog-teeth so that in the extreme position they may be brought into gear for driving the machine in a forward direction. Steering and regulating altitude.-A rudder having vertical and horizontal planes 21, 22 and mounted on a universal joint 24 is connected to a twin bell-crank lever 25 also universally mounted and having a handle 26. Tanks, arrangement and disposition of.-An overhead fuel tank 31 is provided.
Patent GB-1492271-A (GB)
Title: Centrifugal compressors
IPC: F04D25/06
Filed: 1974-01-31
Abstract: 1492271 Variable speed gear COMPAIR INDUSTRIAL Ltd and E J POOLE 16 Jan 1975 [31 Jan 1974] 04604/74 Heading F2D [Also in Division F1] A centrifugal compressor having one or more stages has impellers driven from a shaft 21 via an epicyclic gear train comprising an output sun gear 26, a ring gear 28 integral with a layshaft 50, and input planet gears 20, a braking system being provided to control the rotational speed of the ring gear which in turn governs the speed of the impellers. The braking system may be a hydraulic caliper 55 operating on a disc 53 and controlled by a pump (not shown), driven from a gear 25, which also supplies lubrication to the rotating parts. Intermeshing gears 43, 44 driven by sun gear 26 drive the impellers, the sun gear being driven at a higher speed than that of shaft 21 when the layshaft is stationary. In the event of pump failure, caliper 55 releases disc 53 and the layshaft rotates causing sun gear 26 to slow down. Power is taken from an electric motor, the number of teeth on gears 43 and 44 being in the ratio 6 : 5 so that sun gear 26 may be connected directly via its output shaft 27, on suitable positioning of the epicyclic gear train on a wall 32, to either gear depending upon whether the motor runs off a 50 Hz or 60 Hz source. The braking system may instead comprise a variable speed drive connected to a worm in mesh with a gear on layshaft 50 means being provided to disconnect the worm from the gear. Alternatively the system may comprise a hydraulic clutch or a band brake around the ring gear. A peripheral disc may instead extend around the ring gear and engage a multi-plate clutch or disc brake calipers. Alternatively, an electromagnetic brake may be employed.
Patent GB-244614-A (GB)
Title: Improved gallery fitting for lighting fixtures
IPC: F21V17/00
Filed: 1925-02-19
Abstract: 244,614. Coggans, J. Feb. 19, 1925. Securing shades &c. to galleries.-A shade, bowl, or the like is secured to a gallery 1 by means of a resilient open ring 3 secured to the gallery by a pin 2 and having radial projections 4 engageable w i t h an internal shoulder 5 of the shade when the ring is expanded, the ends of the ring protruding through a slot or slots 6 in the gallery and having finger grips 7 by which the ring can be contracted to release the shade.
Patent GB-1534752-A (GB)
Title: Highly sulphonated triphenylmethane compounds process for their preparation and their use as dyestuffs
IPC: C09D11/17
Filed: 1976-02-06
Abstract: 1534752 Sulphonated triphenylmethane dyestuffs HOECHST AG 6 Feb 1976 [6 Feb 1975] 04718/76 Heading C4P The invention comprises sulphonated triphenyl methane dyes of the general formula wherein R 1 <SP>I</SP>, R 1 <SP>II</SP> and R 1 <SP>III</SP>, which may be different are H, halogen, C 1 -C 4  alkyl or C 1 -C 4  alkoxy, R 5  is H or a group R 2 <SP>I</SP>, R 2 <SP>II</SP>, R 2 <SP>III</SP>, R 3 <SP>I</SP>, R 3 <SP>II</SP>, R 3 <SP>III</SP>, R 4 <SP>I</SP>, R 4 <SP>II</SP> and R 4 <SP>III</SP>, which may be different, are H, halogen C 1 -C 4  alkyl, C 1 -C 4  alkoxy, phenyl, phenoxy, phenylamino, benzyl or phenethyl, or two of these groups together with the benzene ring to which they are bound form a naphthyl or an anthroquinone radical, at least one of R 2 <SP>III</SP>-R 3 <SP>III</SP> if present being other then H, A is H, NH 4 , N(R) 4  or a metal equivalent and the R groups which may be different are alkyl which may be substituted by one or more hydroxy or alkoxy groups, or two R groups together with the N atom form a piperidine or morpholine radical and n is an integer from 3 to 6. The dyes are prepared by sulphonating the triphenylmethane base, or a salt thereof, wherein 3>n#0 or a mixture thereof with oleum (e.g. 5-40% SO 3 ) or chlorosulphonic acid at 40‹-120‹ C. The invention further comprises dyestuff concentrates comprising 5-80% by weight of one or more dyestuffs and 20-95% by weight of water; up to 30% by weight of a water miscible organic solvent may be present and the concentrates have a pH of 0À5 to 4À0. The dyestuffs are used in fountain pen or fibre or felt tip pen writing inks.
Patent GB-1169795-A (GB)
Title: Partial Wig
Inventor: REGINA RUTH
IPC: A41G3/00
Filed: 1967-01-31
Abstract: 1,169,795. Partial wig. R. REGINA. 31 Jan., 1967, No. 4745/67. Heading A4V. A partial wig comprises a frontal portion 12 of flexible sheet material which is elliptical in outline and has front and rear boundary edges which approach each other at the ends of the major axis of the elipse to from side bands, 13 and 14, as extension of said major axis, a narrow back band 18, having its ends attached to the ends of the side bands, and hair secured to and distributed over the area of the outer surface of the frontal portion and side bands, the front boundary edge of the frontal portion having a length equal to the distance between the temple portions measured over the top of the wearer's head. The portion 12, is shaped so that it fits the frontal portion of the head and the side bands extend downwards behind the ears along the hair-line. The back band passing under the wearer's hair at the rear of the head.
Patent GB-179657-A (GB)
Title: Improvements in or relating to electric switch gear
IPC: H02B13/035
Filed: 1921-02-10
Abstract: 179,657. Reyrolle & Co., Ltd., A., Clothier, H. W., and Linstow, F. N. Feb. 10, 1921. Oil switches; switch mechanism interlocked with lids.-A main oil-break switch has a fixed main contact C<1> at one end of a conductor C which enters through the side of the main oiltank A and terminates outside that tank in a socket C<2> in the oil-immersed tank H. An oilimmersed bus-bar connection G has a socket G' in line with the socket C<2>, and plug connection J between the two is operated from outside the tank. A switch suitable for three-phase systems is shown. After isolating the main switch by means of the plug J, the contact C<1> is earthed by means of a switch K. The operating-mechanism for this switch is interlocked with the isolating-plug mechanism and further, the isolating mechanism is interlocked with the main tank lid A<1>. In addition, the isolating and main switch mechanisms are interlocked. In the arrangement shown in 3, the bus-bar connections G are in a separate tank L.
Patent GB-1093473-A (GB)
Title: Improvements in or relating to combine harvesters
IPC: A01D41/14
Filed: 1965-02-03
Abstract: 1,093,473. Combine harvesters. TEXAS INDUSTRIES Inc. Feb. 3, 1965 [Feb. 12, 1964 (2)], No. 4782/65. Heading A1F. A combine harvester comprises a pivotably mounted mowing table supported partly by wheels 27 and by a compression spring 38 on each of two lifting cylinders 18. Raising and lowering of the mowing table is controlled by lever 26 and valve 20. Each wheel 27 is adjustable by means of cylinder 31 actuated by lever 34 and valve 33. In a second embodiment (Fig 1, not shown) the mowing table is supported on each side by a pair of wheels manually adjustable relative to the table.